Hat-pin.



J. IRWIN. HATVPIN. APPLIUATION FILED MAB. ao, 1910.

967,924. Patented Aug. 23, 1910.

JOHN IRWIN, OIE PHILADELPHIA, PENNSYLVANIA.

HAT-PIN.

Specification of Letters Patent.

lltfatented Aug. 23, 1910.

Application led March 30, 1910. Serial No. 552,443.

To all whom 'ir' may concern:

Be it known that l, Join: Inv-Jin, a citizen of the United States,residing at lhiladet phi-a, in the county ot' Philadelphia and Stateoit' Pennsylvania, have invented certain new and useful improvements inllatdlins, of which the -t'olloiving is a specification.

lily invention relates to improven'ients in hat pins, and moreparticularly to improved means for removably attaching the pin head tothe pin proper, and the head to a pin guard. ln other words, improvedpin head fastening means, either for the pin or for the guard, or forboth.

it further object is to provide an improved AFastening device, whichenables the Asaine pin and guard, to he used with a number oi'dili'erent heads, so thatI the pin heads may be changed to suit the hatsor the oe asion.

With these and other objects in view, the invention consists in certain'novel features oi construction and combinations and arrangements oitparts, as will be more fully' hereinafter described and pointed out inthe claims.

ln the aecon'ipanying draivings: Figure l, a broken vieu' inlongitudinal section illus.- trating my improvements. Fig. 2, is a vieu'.in end elevation ot a pin head. Fig. i3, is a broken perspective viewot the pin, and Fig. l, is a perspective view 'o't' the guard.

l, represents the pin, 2 the guard, 2l thc head ot the pin, and .lthehead of the guard, which is precisely like the head ot' the pin, andwhile I have shown these heads 3, and l', of a simple forni, it is to heunderstood that they may be ot any desired material, ornaniented in anyway to suit the tastes of the trade. t 7

The guard 2 is of general conical :form to receive the pin therein,`andthe pinis provided with screw threads 5, adapted to' engage internalscrew threads G, in guard 2. The entrance end of the guard is taperingorvbeveled, as shown at 7, to guide the point 'of the pin 1, pastthescrew threads o, so

that the point will not be liable to catch .in the threads when the pinenters the guard.

.l'n the heads 3 and 'l, shanks 8 are secured and are provided withcylindrical hores 9, extending to a point near the inner end of theshank, and in the extremo end of the shank an opening 1() is providedotless diameter than the bore 9.

Nearthe inner endof each shank 8, and

'communicating with the bore 9, are transverse recesses 1l, havingcurved outer Walls tornnng cam faces, and extending longitudinally ofeach shank, and at opposite sides of' the bore. 9, longitudinal grooves12 are provided, which register with the reeesses ll, in the innerportions of Shanks 8.

Pin l, and guard 2, are each provided at their ends `with studs 13,smaller in diameter than the pin and guard respectively, and adapted toenter the openings l() in Shanks 8. The pin l, and the guard 2 are alsoprovided at their ends, adjacent the studs 13, with oppositelyprojecting tongues la, which areadapted to enter thelongitndinal grooves1Q in the Shanks 8, and be forced back in the shanks as the pin or guardis moved through the bore 9 of the shank. When these tongues 14, reachthe inner end of the shank, they will lie in the recesses 11, so thatwhen one part is held and the other turned, the tongues will be movedinto thereeesses, and the cam vvalls of said recesses will bind againstsaid tongues, and securely hold them in the shank. To release the pm orguard from its head, it is simply necessary to turn Zone part while theother is held, so that the tongues 14 may be returned to position inline with the grooves l, when the parts may be readily sepa lated.

By reason oi' a. construction of this character, the owner of a pin andguard may have a large number of diderentJ styles ot' heads, which maybe attached and detached from the pin and guard, as desired, and 'w henin use, the guard will securely hold the pin in the hat, will preventinjury from the point of the pin, and the two ornamental heads at theends oit' the pin will be alike, and will add to the ornamental andattractive appearance oi the hat.

Various slight changes might be made 1n the general forni andarrangement of parts described without departing from my invention, andhence l do not limit myself to the. precise details set `forth, butconsider' myselfl at liberty to malte such changes and :.ilterations as:Fairly tall within the spirit and scope ol the appended claims.

lhiving thus described my invention,what

l claim as new and desire to secure by Letters .Patent is:

l.. .ln -r-,ombination7 -a head, a shank secured in the head, and havinga tubulan bore, longitudinal grooves conm'lunicating with the bore, andtransverse recesses at the inner end ot' the bore having cam Walls.

' shank registering With the bore and having outer cam Walls, of ,amember constructed to .fit Within the bore, a stud on the end of saidmember to enter said opening in the shank, and tongues at opposite sidesof said member adapted to be moved through said longitudinal grooves undinto said transverse recesses, substantially as described.

' In testimony whereof I have signed my name to this specification inthe presence of two subscribing Witnesses. v

JOHN RWIN.

fitnesses t R. H. KRENKEL, C. E. Po'rrs.

